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White Paper to Support Supersession of MIL-S-8879C With AS8879C

2003-03-19
CURRENT
AIR5926
This paper was prepared to support supersession of MIL-S-8879C with Screw Thread Conformity Task Force selected industry standard AS8879C, published by the Society of Automotive Engineers (SAE). Other documentation changes will be covered by separate papers. Separate papers are anticipated for thread gaging issues, and thread gage calibration procedures. The STC-TF decided that the thread design standard needed to be completed before thread gage definition could be addressed. Thread gage definition has to be known before calibration procedures can be addressed.
Standard

FINAL REPORT ON COLD STARTING OF RECIPROCATING AIRCRAFT ENGINES

1951-10-01
CURRENT
AIR13A
INTRODUCT ION Conventional internal conbustion a i r c r a f t engines require the same basic conditions for starting in cold weather as they do in warn weather. These are: (1) The engine must be cranked a t a reasonable speed. ( 2 ) A combustible mixture must be delivered t o the cylinders. (3) An ignition spark must be supplied which is capable of igniting t'ne charge a t the proper t i m e . (4) The fits and olearanoes of mating parts in the engine m u s t be such that normal Sunctions occur a t a l l temperatures. (5) The engine must receive a usable lubricant. (6) The engine must develop s u f f i c i e n t power t o overcome its own f r i c t i o n and accelerate itself t o the desired operating speed.
Standard

Low Temperature Torque Test for Aircraft Greases

1955-03-01
CURRENT
AIR43
The objective of this investigation was to develop a test method for measuring the resistance to rotation of a ball bearing, caused by the grease in that bearing, as a function of temperature. Low temperatures were of particular interest, and it was desired that the test results be expressed in terms which could be used in mechanism design by proper correction for bearing size, etc. It was also desired that the method be capable of measuring 'break away' as well as the running torque of a bearing filled with grease.
Standard

Corrosion Preventative Characteristics of Aircraft Greases

1955-03-01
CURRENT
AIR40
The objective of this work was to develop a relatively simple screening or bench test, or a combination of such tests, which would evaluate aircraft greases in respect to corrosion protection under the operating conditions described above.
Standard

Contamination Studies of Aircraft Greases

1955-03-01
CURRENT
AIR42
Certain techniques involved in determining the dirt or abrasive content of aircraft greases are considered inadequate. It is desirable to develop a method of analysis which will definitely identify the quantity, size, and degree of abrasiveness of foreign substances in lubricating greases.
Standard

Stability of Aircraft Greases

1955-03-01
CURRENT
AIR41
The purpose of this information report is to summarize and document data regarding possible alternatives to the use of cadmium plating on hardware typical of the aerospace hose and fitting industry. To document and provide access to information obtained by an industry survey.
Standard

Load Support Characteristics of Aircraft Greases

1955-03-01
CURRENT
AIR44
The objective of this work was to develop a relatively simple bench test or performance test, or a combination of tests, which would be valid for evaluating greases in respect to load support characteristics, when the greases were used in journal bearings or in actuator-type mechanisms.
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